Patent · US Active

Bagasse fractionation for cellulosic ethanol and chemical production

US9932707B2 · kind B2 · utility

2Cited by
8References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 13, 2015
Grant dateApr 3, 2018
Priority date
Expiry dateFeb 9, 2036

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E50/10
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

A process is defined for the continuous steam pretreatment and fractionation of bagasse to produce a concentrated cellulose solid stream that is sensitive to enzymatic hydrolysis. Valuable chemicals are recovered by fractionating the liquid and vapor stream composed of hydrolysis and degradation products of the hemicellulose. Cellulosic derived glucose is produced for fermentation to biofuels. A hemicellulose concentrate is recovered that can be converted to value added products including ethanol.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.